If you'll be editing your time offset, you'll see right below that the offset gives the exact time in your area but while browsing the forum it does not.

It could be that the board was set not to follow users' time offset but the server's time settings.

"Speak your truth quietly and clearly; and listen to others; even the dull and ignorant, for they too have their story
...
If you compare yourself with others you may become vain or bitter, for always there will be greater and lesser person than yourself."